When I said 'version', I meant each version of the control panel layout, not different versions of Windows.

You said 'Windows Classic' and 'Windows 7 Basic' in your original post. These are two very different layouts/designs/styles. The XPath will be different. It does not matter if they are both Windows 7, the LAYOUT is different for the two windows BECAUSE the design/style is different.

krstcs was right, there are completely different controls depending on the Windows styles.

IMHO this is not common for every UI technology, but this seems to be a Delphi application that obviously exposes that behavior. I.e. to me it looks like the Delphi application does not just change its style, but its complete control layout when switching Windows styles.
Unfortunately, there is nothing we can do from our side to provide a single element representation in such a case.